Q7117397

From Wikidata
Jump to: navigation, search

P. L. Robertson (Q7117397) [edit]

Canadian inventor who popularized the square-socket type of screw drive [edit]

No aliases defined.
    [edit]

    Statements

    0 references
    0 references
    1879
    0 references
    1951
    0 references
    0 references
    [edit]
    [edit]
    [edit]
    [edit]
    [edit]
    [edit]